Riveting tool



13, 1927. 1,652,770 7 P. B. DEPTQ RIVETING TOOL Filed Feb.l6, 192? INVENT R final 3 pto ATTORNEY Patented Dec. 13, 1927.

STATEfi PAUL B. nEr'ro, or morrrvlmn, NEW JEnsEY.

BIVETING 001..

application filed .I ebruary 16, Serial 160. 168,602.

This invention relates generally to tools and has more particular reference to an improved riveting'tool.

*The invention has forv an object the provision of an improved riveting tool which is efficient in operation, and which can" be manufactured and sold at a reasonable cost. For further comprehension of the invention and of the objects and advantages thereof, reference will be had to the followin de- $riP and ompa y drawin a to the appended claims in which the various novel features oftheinvention aremore' particularly's'e'tforth."

Referring to the drawing forming a material part of this" disclosure? Fig. 1 is a side elevation of a tool constructed accordingto this invention.

Figf2is a central vertical sectional view thereof, with the springs therein in compressed condition.

Fig. 3 is a fragmentary view of a portion of Fig. 1, but constructed according to a modification of the invention.

Fig. 4 is a horizontal sectional view taken on the line 4-4 of Fig. 3.

The reference numeral indicates a tip end formed with a concaved end 11, and a central bore 12. A substantial Z-shaped 30 member 13 is formed at one end with a shoulder 14 abutable against the end of the tip end having the central bore, and a projection 15 slidable in. the bore, while the other end of the Z-member has a rod 16 projecting therefrom and integral therewith. A pin 17 is fixed in the projection 15, and engages in slpt-s 18 in the tip end 10. An expansion spring 19 is housed in bore 12 and normally urges the tip end 10 away from the shoulder 14 to such a distance as permitted by the pin 17 and slot 18.

An L handle member 20 is formed at one end with a central bore 21 slidably engaging the rod 16, and at the other end with a concaved end 22. The end of the Z-member 13 havingthe rod 16, must necessarily have a shoulder 23, and the L-handle 20 is abut-- able against this shoulder. Formed within the L-handle 20 is a cavity 24, and housed in the cavity is a spring 25 engaged at one end to the rod 16, as at 26, and abutting the L-handle with the other end. Pin 27 is fixed to rod 16, and engages in slots 28 in the L- handle.

In the modification illustrated in Fi res 3 and 4, the Z-member 13 is formed 0 two parts 30, 31 slidably engaged with each other by a dove tailed' tongue 32 integral wit-h part 30, engaging a dovetailedigroove 33 in part 31. The part 31 is recessedas at 3a to accommodate arack 35 integral with tongue '32,'and a pinion36 which is mounted on shaft 37. The pinion 36 meshes with the rack 35. The shaft 36 extends to the outside of part-"31 and has a lever 38 aflixed thereto." Aratch 39 is slidable' in gr'o'oves 40'in'member 31, and may he slid over the lever 38 tolock the lever in place. Thereafter, screws41 may bepassed through a ertures {12 in the catch 39 and 'fastene "to part, 31. d V V a. V.

A head may be formed on a rivet by placs h flc n av d 1 K p n th r n a ly ho 3 9 r 'Q Fhafid 20, and hammering on the portion ndicated by numeral 43. Normally the device is as illustrated in Figure 1, but each blow causes the device to assume a position illustrated in Figure 2, that is springs 25 and 19 are compressed, and the end of the L-handle engages shoulder 23, while shoulder 14 engages the end of the tip end 10. The initial force of a blow struck on 43 is used in compressing the springs 19, 25, and only after these springs are compressed so that shoulders 14, 23, engage the adjacent parts, does the remaining force in the blow act directly upon the rivet. This action eliminates an undesirable initial high stress on the rivet, and tends to more evenly deliver the force of a blow. The concaved end 22 may be used when a direct force from a blow is to be exerted upon a rivet.

For diflerent riveting jobs it may be desirable to change the size of the Z-member 13', and this may be accomplished by re moving screws 41, sliding catch 39 free from lever 38, and turning the lever until the desired size is obtained, thereafter locking the lever as it initially was. Of course, when the lever 38 is turned, the motion being communicated to shaft 37 and pinion 36, the rack 35 moves, moving part 30 relative to part 31.

\Vhile I have illustrated and described my invention with some degree of particularity, I realize that in practice various alterations therein may be made. I therefore reserve the right and privilege of changing the details of construction or altering the arrangement of the correlated parts without departing from the spirit or the scope of the appended claims.

Having thus described my inventon, what I claim as new, and desire to secure by United States Letters Patent is 1. A device of the class described, C0111- prising a tip end, a Z-member connected therewith by means of a projection therefrom slidable in a central bore in the tip end, and a pin fixed in the projection engaging slots in the tip end, an L-handle connected with the Z-member by means of a rod projecting from the Z-member and engaging a bore in the L-handle, and a pin fixed in the rod engaging slots in the L-handle, a spring normally urging the tip end and Z-member apart, another spring normally urging the Z-member and L-handle apart, and means for adjusting the size of the Z-member.

2. A means of adjusting the size of a Z- Y member for a device of the class described,

comprising two parts forming the Z-member, one of the parts being formed with a dovetailed groove, a dove-tailed tongue integral with the other part, and slidable in the groove, a rack on the tongue, a pinion meshing with the rack, a shaft mounted in the 'part formed with the groove, the shaft car- I rying the pinion, a lever on the end of the shaft, a catch slidable in grooves in the part of the Z-member formed with the dove-tailed groove, and engageable over the lever, and means for. fastening the catch in position over the lever.

8. A means of adjustin the size of a Z- member for a device of tie class described comprising two parts forming the Z-member, one of the parts being formed with a dovetailed groove, a d0ve-tailed tongue integral with the other part, and slidable in the groove, a rack on the tongue, a pinion meshing with the rack, a shaft mounted in the part formed with the groove, the shaft carrying the pinion, a lever on the end of the shaft, a catch slidable in grooves in the part of the Z-member formed with the dove-tailed groove and engageable over the lever, and means for fastening the catch in position over the lever, consisting of screws passed throughapertures in the catch and fastened tothe part of the Z-member formed with the dove-tailed groove. V

In testimony whereof I have affixed my signature.

PAUL B. DEPTO. 

